Alarm timer



March 19, 1940. RHODES 2,194,448

ALARM TIMER Filed NOV. 22, 1959 INVENTOR Mia/Ma WWW ATTORNEY PatentedMar. 19, 1940- ALARM TIMER Marcus 11. Rhodes, Hartford, 001111.,assignor to IVL H. Rhodes, Inc., Hartford, 001111., a corporation ofDelaware Application November 22, 1939, Serial No. 305,633

7 Claims.

This invention relates to clocks or timers and particularly to a clockadapted to operate an alarm such as the striking of a bell after apredetermined but widely variable period of time 35 which may be pre-setas desired.

An object of the present invention is to provide an improved assembly ofclock-work, bell, indicator and setting member and their means ofattachment to a housing such as a stove or other member to which thetiming clock is to be attached.

A feature that enables the above object to be accomplished is that theclock-work, by means of which the alarm is operated, encloses and issurrounded by the bell and the striker or hammer released by the clockafter any desired period of time strikes the bell upon its internalcylindrical surface by movement outward from the cylindrical wall of theclock-work enclosure.

Other objects that are advantageous are that the bell is held inposition upon the clock-work enclosure by securing means at the axis andat the rear surface of the clock and that the clock is held securely toits housing by means of a hollow screw or sleeve threaded on its outersurface and rigidly secured to the front plate of the clock.

And finally it is an object of the invention to position the winding andsetting rod for the timing mechanism to extend axially through themounting sleeve, and to frictionally mount a knob or handle on this rodat its forward end.

With the, above and other objects in view the invention includes thefeatures of construction and operation set forth in the followingspecification and illustrated in the accompanying drawing.

In the accompanying drawing annexed hereto and forming a part of thisspecification, i

have shown the invention embodied in atype commonly now used as an oventimer but it will 'be understood that the invention can he otherwiseembodied and that the drawing is not to be construed as defining orlimiting the scope of the been shown but one embodiment of the inventionwhich is now deemed preferable, but it is to be understood that changesand modifications may be made within the scope of the appended claimswithout departing from the spirit of the invention.

Briefly and in its preferred aspect, the invention may include thefollowing principal parts: First, a housing within which the alarm timermay be mounted; second, a clock-work enclosure having a threaded sleeveextending from one face which may enter an opening in the housing;third, a bell enclosing said clock-work and attached thereto at the axisof said clock and bell; fourth, a striker or hammer operatively mountedwithin the clock-work enclosure and extending laterally therefrom tostrike the bell upon the inner wall of its enclosing cylindricalsurface} fifth, a winding and setting member extending axially throughthe sleeve; and sixth, a knob or handle frictionally mounted upon theforward end of the winding and setting rod.

Referring more in detail to the figures of the drawing there is shown ahousing it which may be of any type and to which the clock I l and belll2 may be attached. The clock-work (not shown) is enclosed within thecup shaped metal member l i having a front plate l3 secured thereto andforming a complete enclosure for the operatingparts (not shown) forcontrolling the delayed striking of the hammer Ml. Rigidly secured tothe clock enclosure ll preferably by being soldered to the rear surfaceof its front plate 83 is a threaded sleeve it. This sleeve 05 has aflange it at its inner end engaging within a central opening in thefront plate l3 so that the sleeve it may readily be secured thereto.

To secure the clock enclosure H and the hell it together a screw ii isprovided extending centrally and am'ally through their walls as shown.To prevent the bell W. from rotating upon the enclosure 8 l about thescrew ii, the walls of the enclosure ii and bell l2 adjacent theopenings for the screw Ill may be pressed or otherwise formed into anynon-circular form as shown at it.

y In front of the housing it to which the clock it and hell it areattached may be placed the dial plate 19 having a central openingthrough which the sleeve it: extends A washer 20 and nut 2! on thesleeve enable the enclosure H to be firmly held in position against theinner wall of the housing i0.

Extending freely through the opening within the sleeve I6 is theactuating or winding member 22 for the delay timing mechanism (notshown). This winding member. 22 may be rotatably supported centrallywithin the enclosure H by means of intermediate plates 23 providedwithin the enclosure. Secured in position upon the member 22 at itsforward end is a knob 24 by means of which the actuator rod 22 may beturned and which will indicate the setting relative to the dial I9.Preferably this knob may be forced over the outer end of the rod 22which may be milled to provide a slot extending longi-.

tudinally as shown. A small transverse strip 25 moulded into the knob 24fits within this slot l0 and retains the knob 24 frictionally inposition on the rod and enables the knob 24 to rotate the actuating andsetting rod 22 for the hammer M.

In assembling the clock-work enclosure H and bell l2 it is onlynecessary to tighten one screw l1 and to mount the assembled clock itand bell l2 upon a housing it is only necessary to tighten nut 2| uponthe threaded sleeve 05. The forward plate I3 of the clock is therebyheld firmly against the rear wall of the housing I0 and the dial plateI9 is also retainedin proper position. To complete the assembly it isonly necessary to press the knob 24 over the end of the winding andsetting rod 22 so that the transverse plate or strip 25 moulded orotherwise mounted in the knob 24 may fit the slotted portion of the rod22.

I claim as my invention:

1. An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a threaded sleeve extending from said enclosurewhereby said timer may be mounted upon a housing, and winding means forsaid clock-work extending through said sleeve,

2. An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a striker extending from said cup shaped member and.adapted to strike said bell upon its inner surface, a thread-ed sleeveextending from said cup shaped member whereby said timer may be mountedupon a housing, and winding means for said clock-work extending throughsaid sleeve.

3.-An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a striker extending from said cup shaped member andadapted to strike said bell upon its inner enclosing cylindrlcalsurface, a threaded sleeve extending from said cup shaped member wherebysaid timer may be mounted. upon a housing, and winding means for saidclock-work extending through said sleeve. 5

4. An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a threaded sleeve extending from said cup shapedmember, whereby said timer may be mounted on a housing, a winding memberfor said clock extending through said sleeve, and a winding knobfrictionally mounted on the outer end of said winding member.

5. An alarm timer comprising in combination, a cup shaped member.forming a clock-work enclosure, a bell supported thereon and surroundingsaid cup shaped member, a threaded sleeve extending from one of thewalls of said cup shaped member, securing means on said sleeve wherebysaid timer may be mounted on a housing, a slotted winding member forsaid clock-work extending through said sleeve, and a winding knobfrictionally mounted thereon.

6. An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a 'threaded sleeve extending from one of the walls ofsaid cup shaped member, securing means on said sleeve whereby said timermay be mounted on a housing, a slotted winding member for saidclock-work extending through said sleeve, a winding knob on said member,and a transverse bar within said knob adapted to engage the slottedportion of said rod and retain said knob in position thereon.

7. An alarm timer comprising in combination, a cup shaped member forminga clock-work enclosure, a bell supported thereon and surrounding saidcup shaped member, a striker extending from said cup shaped member andadapted to strike said bell upon its inner enclosing cylindricalsurface, a threaded sleeve extending from said cup shaped member,securing means on said sleeve whereby said timer may be mounted-upon ahousing, a winding and setting member for said clock extending centrallythrough said sleeve, and a winding knob slidable axially into frictionalengagement with said member, said frictional engagement for said memberforcing said member to rotate with said knob.

MARCUS H. RHODES.

